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Author Question: From a population consisting of 8,000 elements, a sample of size 121 is selected. The sample has a ... (Read 180 times)

MirandaLo

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on: Jun 24, 2018
From a population consisting of 8,000 elements, a sample of size 121 is selected. The sample has a mean of 4,000 and a standard deviation of 600.
 a. Estimate the standard error of the mean.
  b. Develop an approximate 95 confidence interval for the population mean.
  c. Estimate the population total.
  d. Develop an approximate 95 confidence interval for the population total.

Question 2

There are three statistics used to measure variability in a data set; the range, the ___________________ _, and the ___________________ _.
 Fill in the blank(s) with correct word


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juicepod

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 54.1
b. 3,891.7 to 4,108.3
c. 32,000,000
d. 31,133,898 to 32,866,102

Answer to Question 2

variance; standard deviation
standard deviation; variance


MirandaLo

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Reply 2 on: Jun 24, 2018
Excellent

adammoses97

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Reply 3 on: Yesterday
Wow, this really help

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